Pertaining to but not limited to the biggest skank ass hoe alive. This person is usually referred to as "the one the whole town ran a train on last night for a dollar." The slutasorousrex is also known as a skankasorousrex, and usually is at the top of the list of all sluts in the town. Has been known to eat the client after intercourse has concluded.

Damn, that bitch will slut out for anyone john!
Oh, you haven't heard? Jenny is a slutasorousrex, and has every disease known to mankind.
Damn that's a nasty bitch